Stereotype-plate fastening for rotary cylinder printing-presses.



' H. F. BEGHMAN, STERBOTYPB PLATE FASTENING FOR ROTARY CYLINDER PRNTING PRESSES. Y APPLIOATION FILED AUG. l5, 1906.

FL g 2,9@4;@ Familie@ Mar. 2, 193.5.

@Hou/w13 5 are orion.

-IENRY S. BECHTMAN, OF BATTLE CREEK, MICHGAN, ASSIGN?, T DUPLEX PjB/INTING PRESS GGMPANY. 0F BATTLE CREEK, MCHIGAN.

STEREOTYPE-FLATE FASTENING FOR ROTRY CYLINDER PRllNTING-PRSSEL l specialiseren of Letters raient.

l.Yllrtenteol Mar. 2, item5.

. Application led August 15, 1906. Serial No. 330,698.

To all whom "it may concern:

Be it known that I, HENRY F. BnCiiM/AN, oit Battle Creek, in the county oit' vCalhoun and State of Michigan, have invented certain new and useful improvements in Stereotype-Plate Fastenings for Rotary .Cylinder lirinting-Presses; and l hereby declare that the following is a full, clear,

` and enact description thereof, reference be- .which form part of this specilication.A

nglhad to 4the accompanying drawings,

k ders and use single tubular plates thereon,

such plates being substantially the same in diameter as the cylinders and fitted thereto, each plate substantially .surrounding the cylinder, and at each revolution of the cylinder but one plate will be printed circumfer entially ,of the cylinder.` 0f course the cylinder may be oi such length that a series of plates may be arranged end to end on the saine cylinder. The peculiar characteristic feature of this part of the invention is that each plate constitutes almost a complete tube and must be slipped endwise, on or oil,

the cylinder, such cylinders being notably diderent from' those ordinarily employed, which are somewhat less than half the diameter of the cylinder in extent, and heretofore the cylinders have necessarily been somewhat more than twice the length of the plates in circumference and two sets of stereotype plates are secured to each cylinder at diametrically opposite points,- whereaso in my invention each/ stereotype plate is made in substantially tubular form, and substantially. surrounds the entire circumference of the cylinder to which it is applied.

` 'Vhile the peripheral speed of the cylinders, in my invention, is equal to that of the ordinary plate cylinders, the diameter of the plate cylinders is reduced one-half and.-

ao their weight is correspondingly lessened;

and a corresponding reduction is made in the size of the press. The 'improved plate rlylinders are provided with novel loc ring devices for fastenin thev plates thereto as hereinafter describe The essential features of the invention, 'andparts for which protection is desired, are summarized in the claims-*following the description of the mechanism illustrated in Figure 1 is a side elevation of a cylinder carrying two of my tubular plates; Fig. 2 is a detail section thereof on line 2-2,

isan enlarged detail View of the plate securing devices; and/Fig. 7 is a vertical section on line 7-e7, Fig. 6.

|The cylinder Il niay'be of any suitable "m construction, and is substantially like the ordinary plate cylinders, with the exceptions hereinafter noted, but it is only half 'i the diameter of the ordinary plate cylinders, and it is provided at one end with a '7gg i fixed collar l, which is preferably beveled on its inner tace and against which the opositely beveled edge of one of` the novel stereotype plates 2 isabutted. The cylinder is provided at the other end with novel yplate 30 retaining devices hereinafter explaine Each stereotype plate 2, it will be observed, is substantially 'tubular in contour,

and of the same internal diameter as the external diameter of the cylinder 1, onto g5 which it is slipped -eiidwise The type columns von the plates 2 extend circumferentially thereof. The plates 2 are provided. with beveled edges 2 on their ends to engage the collar lFL and the platescuring clamps hereinafter referred to'.

One of theV 'plates has its beveled edge Qa engaged with the collar l, and its inner beveled edge is engaged by clamps 3, which are slidable in longitudinal grooves El, 1n 95 the cylinder l, said grooves extendingviiiom the end opposite collar la, to a point a little `beyond lthe center of the cylinder, as indicated kin Fig. 1. The grooves le are dovetailed or T-shaped in crossseotion, as shown,

and the clamps 3 are preferably provided with T-shaped bases biting the grooves so that the clamps cannot escape, therefrom, but are adjustable longitudinally thereof.

Tliere are three grooves 1c shownand the '105 cla'inps 3 are the centralclamps, and are toev,- v

eledcnboth edges to engage .adjacent plates,

es shower; After the rstplate is put-1n place against collar la, the clampsware niot'fed up thereagainst and then theneatiio plate is slipped on to the cylinder and up CII llll

cases being equal.

against the clamps 8.` Then end clamps 4,-Y-which are provided with projecting edges to engage the beveled edge of the cylinj dcr,--arc"slipped into grooves l", and slid up against the edge ol. the outer plate, as shown in Figs. l and, so as to force the second plate toward the first pla-te and the first plate against the collar la, and vthus the clamps. hold both plates in position upon the cylinder. Rotativo movement of the tubular plates on thecylinder is prevented by a stop rib 1e on the cylinder. After the plates 2 are in position, the clamping plate 5 is brought up against the clamps fl, and secure-d. This clamp plate 5 is rotatably 4mounted. on the journal of the cylinder, 'and is secured'thereto by means of bolts 6 tapped. into the end of the cylinder and passing through curved 4slots 5min Vthe clamp plate Said clamp plate is provided with inwardly projecting fingers 5b which, after the bolts 6 are loosened, can be brought opposite the clamps fl., and, asshown in Figs. G and 7, can be pressed inward against the clamps l by tightening the bolts 9, thereby-causing the clamps 4 and vEl and collar la to securely hold the plates in position against endwise movement.

llVhen the plates are to be removed the bolts 6 loosened., and the clamp plate 5 turned to the position indicated in dotted lines Fig. 6, whereupon the clamps s can be removed; then the second plate 2 is slid endwise od the cylinder, then the clamps 3 are. removed and the first plate 2 slid endwise 0H the cylinder. In this manner the tubular plates can be readily and easily placed on or removed from the cylinder.

The advantages o'l' the tubular plates and small singleplate cylinder over the large double-plate cylinders heretofore employed are the reduction in the number of plates required; and the fact that practically no part of the rotary nioif'enicnt of the plate cylinder is idle; no time is wasted for collection, as is necessary with the large plate cylinders where plates are in duplicate, and the pages must be collected. My invention therefore requires a less number of plates to produce the saine number of pages at the same peripheral speed as the old press,.ind, consequently, lessens the operative expenses. To run an old machine and print 16 pages, requires 39 plates in thc ordinary two-plate machine; while my machine equipped with my single plates, would require only. 16 plates to print i6 pages at the same speed, the surface spoed of the cylinders in both Further with my single plate cyliin'lers a better class oi work can be produced, inasmuch as the circumference of the composition rollers can be made equal to the cli-cilii'iference of the plate, so that no portion of the rol er would strike twice in one revolution on the saine plate, and it vplate clamps engaging the said propves, a

epee

clamp ring adjustably attached to end or' the cylinder and adapted to be rorzlnbly moved into and out of position to ci'xgage the clamps, and bolts -for forcing the clampingl plate inward against the clamps alter it is turned to engaging position..

The combination oi a cylinder,

`vided with longitudinal grooves, and p ate clamps adjustably mounted in said grooves, tubular plates adapt-cd to he successively slipped endwise on said, cvlinder, and a rotatably movable ciampi l te mounted on the end of the cylinder hai` ng lugs adapted to engage the outermost plate clamps, and means ior forcing-r said clamp plato inward and causing it to torce the clamps inward.

a. The combination with a cylinder, pro# vided with 'longitudinal grooves, a clamp collar on the cylinder, and plate clamps ad justably mounted in each of said grooves, with plates adapted to be placed on said cylinder, and a rotatable cir np plate mounted on the end of the cylinder having lugs adapted to engage the .outermost plate clamps when the clamp plate is 'turned to one position, and bolts passing through slots in the clamp plate, and whereby it is caused to torce the c amps inward.

5. he combination of a plate cylinder having longitudinal grooves, with tubular plates slipped endwise on said cylinder, plate clamps loosely mounted in the said grooves, a clamp ring adjustably attached to one end of 'the cylinder and adapted to be rotatably moved into and out of position to engage the plate clamps, and means for forcing the clamping ring toward the plate clamps.

G. For a rotary cylinder printing press, a printing plate containing a singlevage of typo matter and curved in tubular orin to leave a single narrow longitudinal slot be tween the adjacent ends of the plate equal' in '.idth to the margin between successive impressions taken from such plate upon a web.

7. The combination of a plate cylinder,

euri/'ed im.

bei; one @ege eilype mel Athe cg/limlei'T and ha Renew specie l3etween elle' adjacent eiicls elf elle piiiie up" fece of the plete come-spending Wlili te the margin between successive infipiessions teken from. suoli plete upon. e wel?, enel means for deteche. Jly securing suele plete en the cylinder.

8. In cembiiielgion, e pla/ee Cylinder Whese circumference is slightly greete in exten?, than the lengsh of en ordinary newspaper type page, with e tubular sfeeetype plete having e neiow lengiliine elet en@ een taining but ene newspaf` page of melee?, and eurveil Le ambetant :illy eiiii'eund the Cylinder enel C' be slipped eilwee exi and eff "elle cylinder, and means lei' letaclielely attaching the plate te the cylinder.

9. ln e newspaper printing press, the combination o" :i rotary `plete cylinder of email diameter and whose circumference is eligliily greater in extent than the length el an ordinary newsmpei' type page; with a printing plate equal in superficiel. extent te an. ordinary one-page type plete, but eui'vefl to Substantially surround the eyiiji'ulei* when slipped end'wse glle'feoi7 the, Spese bei-Ween the adjacent enfle of "alie emvecl plante come spending to the margin between successive impressions taken from said plete upon e. web, acl means er deeehebjf eiexining the. plete to the eylnden 10. n e. printing prees, the eembineiein, ef a plete eylinei 11s-'f i 4g en annuler." eellai* at @ne emi, e u 'bubulef platee each lieviiig; e single lege iaiiiial 'slot and. adepteil 'e eubseiielly .trommel elle cylinder, anc 30 be sueeessiveljyY elippexl em'wise ont@ elle ci Bilder and. il?, closely thereto; removable c amps adepef te be inieiposefi 'between "elle eis el clamps the lie Cellex, e ele-mp5 #Le e plebe., eubeisei 'le im musing elle i'ftie enel @L5 elle ecljeeem:

- ileseiibeii. il. En e rei-ely newspaper priming preesS elle eemeiiletiezi elf f. i wry plee cylinder her-.fing eiieumexenee slightly greater le exigent there, elle length ef en eriiziiy news'- pepei' lzype page; with e. singletuba lai' plete equal in eupex'leiel emeiie te en eiidineiy'newepape page plete al1 curved Eo pmctieelly Siu-mim@ elle eyliider and be .litt-eil all for clamping elle plete eyliiidei,

lo. eyiiiiiliieafl if: im containing Single having single nerim; gmel space equal wif mel-gine between me consecutive imgiee sione baken from. suoli plaie apen i web.

13. A. Cylindrical. tubular piining @lelie for use on retey cyliiier printing presses .lm-ving :i :single narrow lciigitmlinal mai ginel space equal in Wlcllin fee the desired mei'gin between two consecutive impieesioiis taken from Such plete upon :i web, alle plete ffii being curved lengthwise ciie'uiiilei'entielly of the evliiidev.

Ll. A cylindrical ubulei' prii'i-iiig plete having e Single narrow longitudinal Slot equal in Width to alle desired marginal space 7:3 between consecutive impreeeione aken from Snell plete upon e. wel?.

ln estimoey itlial; l claim. lie Eeiegeing ae my own. @Alix 'my sigmtuife iii pieeeiiee ef two Witnesses. 

